3(4n-1)=21

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Solution for 3(4n-1)=21 equation: 


n in (-oo:+oo)

3*(4*n-1) = 21 // - 21

3*(4*n-1)-21 = 0

3*(4*n-1)-21 = 0

12*n-24 = 0

12*n-24 = 0

12*n-24 = 0 // + 24

12*n = 24 // : 12

n = 24/12

n = 2

n = 2

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